Finding the Fourth Proportional to 122,254.68, 168,709.80 and 68,539.56
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Solution
The fourth proportional to 122,254.68, 168,709.80 and 68,539.56 is: 94,583.66
Step by Step Solution
- Step 1: Write the proportion equation
122,254.68 : 168,709.80 = 68,539.56 : x - Step 2: Convert to fraction form
122,254.68/168,709.80 = 68,539.56/x - Step 3: Cross multiply
122,254.68x = 168,709.80 × 68,539.56 - Step 4: Simplify right side
122,254.68x = 11,563,295,459.69 - Step 5: Solve for x
x = 11,563,295,459.69/122,254.68 - Step 6: Final answer
x = 94,583.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.